Spamhaus, a major DNS-based Blacklist (DNSBL) provider, published, earlier this month, an article outlining the problem of snowshoe spam.
Snowshoe spam appears to be a novel tactic used by spammers to avoid detection by traditional means. In detail, unsolicited e-mail messages are sent not massively from botnets or other compromised IP address ranges but in modest volumes from unallocated addresses. (more…)
